这里有个反例： 37. Seeming to be the only organization fighting for the rights of poor people in the South, Hosea Hudson, a laborer in Alabama, joined the Communist party in 1931.
(A) Seeming to be (B) As (C) In that they seemed (D) Since it seemed seem（E） (E) Because it seemed to be
这里的it就指向了Communist part，主句的宾语。
假如前面从句代词可以指代主句非主语，那么再请看OG12-67: 67. Affording strategic proximity to the Strait of Gibraltar, Morocco was also of interest to the French throughout the first half of the twentieth century because they assumed that if they did not hold it, their grip on Algeria was always insecure.
(A) if they did not hold it, their grip on Algeria was always insecure (B) without it their grip on Algeria would never be secure (C) their grip on Algeria was not ever secure if they did not hold it (D) without that, they could never be secure about their grip on Algeria（B） (E) never would their grip on Algeria be secure if they did not hold it
第二题 这里并不是你说的那种“修饰语/从句，SVO” 首先未划线部分的that后是一整句话： without it their grip on Algeria would never be secure ——it在algeria之前 不会指代 如果还原成： their grip on Algeria would never be secure without it 那it就和CE一样可能指代algeria了 因此才把without it放前面 其次，这题从逻辑意思上理解，it肯定也不会指代A的